130 lines
4.4 KiB
HTML
130 lines
4.4 KiB
HTML
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<title>The GNU Fortran Compiler: RANK</title>
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<a name="RANK"></a>
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<p>
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Next: <a href="REAL.html#REAL" accesskey="n" rel="next">REAL</a>, Previous: <a href="RANGE.html#RANGE" accesskey="p" rel="prev">RANGE</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
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<a name="RANK-_002d_002d_002d-Rank-of-a-data-object"></a>
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<h3 class="section">9.218 <code>RANK</code> — Rank of a data object</h3>
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<a name="index-RANK"></a>
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<a name="index-rank"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>RANK(A)</code> returns the rank of a scalar or array data object.
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</p>
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</dd>
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<dt><em>Standard</em>:</dt>
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<dd><p>Technical Specification (TS) 29113
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</p>
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</dd>
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<dt><em>Class</em>:</dt>
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<dd><p>Inquiry function
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</p>
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</dd>
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<dt><em>Syntax</em>:</dt>
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<dd><p><code>RESULT = RANK(A)</code>
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</p>
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</dd>
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<dt><em>Arguments</em>:</dt>
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<dd><table>
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<tr><td width="15%"><var>A</var></td><td width="70%">can be of any type</td></tr>
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</table>
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</dd>
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<dt><em>Return value</em>:</dt>
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<dd><p>The return value is of type <code>INTEGER</code> and of the default integer
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kind. For arrays, their rank is returned; for scalars zero is returned.
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</p>
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</dd>
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<dt><em>Example</em>:</dt>
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<dd><div class="smallexample">
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<pre class="smallexample">program test_rank
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integer :: a
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real, allocatable :: b(:,:)
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print *, rank(a), rank(b) ! Prints: 0 2
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end program test_rank
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</pre></div>
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</dd>
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</dl>
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